Cast-in structure of vehicle component, and cast-in mold

Abstract

An object of the present invention is to surely provide a projection of burr by forming an appropriate gap needed to set a cast-in member to a cast-in mold, and by completely closing the gap when the cast-in mold is clamped, and to correct a cast-in positioning (axis mating) to a die-cast component by a clamping operation of the die-cast mold, regardless of a dimensional precision of the cast-in member upon a manufacture. A steel plate cast-in member 2, which is wrapped cast except for a bonding portion 2 b to a steel plate bonding member 3 upon molding a die-cast component 1, has a mold contact portion A at a boundary between a cast-in portion 2 a wrapped cast with a die-cast component 1 and the bonding portion 2 b . When a cast-in mold A is clamped, the mold contact portion 4 is brought into intimate butting contact with the cast-in mold A, whereby a gap S between the cast-in member 2 and the cast-in mold A, i.e., a cavity is closed. Thus, a projection of burr is prevented.

1 .- 7 . (canceled) 
     
     
         8 . A cast-in structure for a cast-in member, which is made of a steel plate and which is wrapped cast upon molding a die-cast component by means of a cast-in mold except for a bonding portion to be bonded to a steel plate bonding member, wherein
 the cast-in member includes a mold contact portion on both surfaces at a boundary between a cast-in portion wrapped cast with the die-cast component and the bonding portion, wherein the mold contact portion is brought into intimate butting contact with the cast-in mold, when the cast-in mold is clamped.   
     
     
         9 . The cast-in structure for the cast-in member according to  claim 8 , wherein the mold contact portion of the cast-in member is formed to have a taper shape. 
     
     
         10 . The cast-in structure for the cast-in member according to  claim 8 , wherein the cast-in member is formed into a cylinder, internal and external mold contact taper surface portions of the mold contact portion, formed to have a taper shape and formed consecutively on the entire circumference in an axial direction of the cylinder, are formed on a boundary between the bonding portion on one end of the cast-in member and the cast-in portion on the other end of the cast-in member, and when the cast-in mold is clamped, a tapered butting portion formed on the cast-in mold is brought into intimate butting contact with the internal and external mold contact taper surface portions. 
     
     
         11 . A cast-in mold for a cast-in member, the cast-in mold being configured to cast-in a steel plate cast-in member to a die-cast component by setting a cast-in portion of the steel plate cast-in member into a cavity except for a bonding portion to be bonded to a steel plate bonding member, wherein
 the cast-in mold includes a butting portion that is brought into intimate butting contact with a mold contact portion upon mold clamping, the mold contact portion being formed on both surfaces of the cast-in member at a boundary between the cast-in portion and the bonding portion of the cast-in member.   
     
     
         12 . The cast-in mold for the cast-in member according to  claim 11 , wherein the butting portion is formed into a taper shape, and is brought into intimate butting contact with the mold contact portion, which is similarly formed into a taper shape. 
     
     
         13 . The cast-in mold for the cast-in member according to  claim 11 , wherein the butting portion is provided with a biting projection that bites the mold contact portion of the cast-in member. 
     
     
         14 . The cast-in mold for the cast-in member according to  claim 11 , comprising:
 a fixed mold and a movable mold, each having an external butting taper surface portion of the butting portion that is brought into intimate butting contact with an external mold contact taper surface portion of the mold contact portion upon mold clamping, the external mold contact taper surface portion being formed on both the internal and external surfaces of the cylinder to have a taper shape and formed consecutively on the entire circumference in an axial direction of a cylinder of the cast-in member formed into a cylindrical shape; and   a movable core having an internal butting taper surface portion of the butting portion, the internal butting taper surface portion being brought into intimate butting contact with an internal mold contact taper surface portion of the mold contact portion upon mold clamping.